Fuel System:
* Fuel Pump Failure: A common culprit. The pump might be failing to deliver fuel, or the fuel filter could be clogged. Listen for the hum of the fuel pump when the key is turned to the "on" position (not started). No hum suggests a pump problem.
* Clogged Fuel Injector(s): Fuel injectors can become clogged, preventing fuel from reaching the engine. This is less likely to cause a complete and sudden shutdown, but possible.
* Fuel Pressure Regulator: This component regulates fuel pressure. A faulty regulator can cause erratic fuel delivery.
* Empty Fuel Tank: Obvious but worth checking!
Ignition System:
* Ignition Coil: Provides high voltage to the spark plugs. A failing coil can lead to a complete loss of spark.
* Distributor Cap and Rotor: These components distribute the high voltage to the spark plugs. Wear or damage can cause misfires or complete failure.
* Spark Plugs and Wires: Worn or damaged spark plugs or wires can prevent proper ignition.
* Ignition Switch: The switch might be failing, preventing power from reaching the ignition system.
* Crankshaft Position Sensor (CKP): This sensor tells the computer the engine's position. A bad one can prevent starting.
Electrical System:
* Alternator: While it won't immediately cause the engine to die, a failing alternator could drain the battery if it wasn't already low. A completely dead battery will prevent starting.
* Battery: A weak or dead battery is the most common cause of no-start issues. Test the battery voltage.
* Fuses and Relays: A blown fuse or failed relay in the ignition system or fuel pump circuit will stop the engine.
* Wiring Issues: Corrosion, loose connections, or damaged wiring anywhere in the system can cause intermittent or complete failures.
Other Possibilities:
* Neutral Safety Switch: Prevents the vehicle from starting unless it's in Park or Neutral (automatic transmission).
* Computer/ECU Problems: While less common in older vehicles, a failing computer can cause various issues, including sudden engine shutdown.
Troubleshooting Steps:
1. Check the Battery: Test the voltage. Jump-start it (if you have a working battery) to see if that solves the problem.
2. Listen for the Fuel Pump: Turn the key to "on" (don't start) and listen for a humming sound from the fuel pump (usually near the fuel tank).
3. Check Fuses and Relays: Inspect the fuses and relays related to the ignition and fuel systems.
4. Check Spark: (Advanced, requires some mechanical knowledge) Check for spark at the spark plugs to determine if the ignition system is functioning.
5. Check for Fuel: Try to start it. If it cranks but doesn't start, check if fuel is reaching the engine (requires more mechanical knowledge).
Because the vehicle's age and the unusual model designation, it's strongly recommended to have a qualified mechanic diagnose the issue. Many of the above problems require specialized tools and knowledge to pinpoint accurately. Ignoring the problem might lead to further damage.
